Huw is convinced that Jan is an undercover police officer, much to the annoyance of his wife Caroline. Gruff, meanwhile, becomes increasingly concerned about the prospect of a half-naked image of him appearing on the internet, and Richard and Sali continue to play little games within their soulless marriage. Richard pays more attention to his new neighbour, and Jack's 18th birthday party proves an ideal time for the residents to meet, mingle and fall out.